2 papers
gr-qc2026
Nontrivial Symmetries in -essence Cosmology
Andrés Lueiza-Colipí, Nikolaos Dimakis, Andronikos Paliathanasis
In the context of a spatially flat FLRW background, we perform a symmetry classification of -essence models with Lagrangian densities of the form . The kinetic…
gr-qc2025
Compact Stars in Symmetric Teleparallel Scalar-Tensor Gravity
Grigorios Panotopoulos, Andrés Lueiza-Colipí, Nikolaos Dimakis +1
We investigate the existence of static, spherically symmetric compact objects within the framework of symmetric teleparallel scalar-tensor gravity. This theory extends the Brans-Di…